Contents

Suffering from a hyper-accelerated metabolism, Bart Allen was aging at a faster rate than that of any human being, thus causing him to appear the age of twelve when he was chronologically only two years old. To prevent him from developing mental health problems, he was raised in a virtual reality machine which created a simulated world that kept pace with his own scale of time. When it became clear that this method was not helping, his grandmother, Iris Allen, took him back in time to the present where Wally West tricked Bart into a race around the world. By forcing Bart into an extreme burst of speed, Wally managed to shock his hypermetabolism back to normal. Because he had spent the majority of his childhood in a simulated world, Bart had no concept of danger and was prone to leaping before he looked. The youth proved to be more trouble than Wally could handle, and he was palmed off onto retired superhero speedster Max Mercury, who moved Bart to Manchester, Alabama.

Taking on the identity of Impulse, Bart became one of the founding members of the superhero team Young Justice. Impulse stayed with Young Justice for an extensive period of time during which he developed the ability to make speed-force energy duplicates. This allowed him to be in multiple places at once. The newly acquired power proved useful until one of the duplicates was killed during the "Our Worlds at War" storyline when half the team was lost on Apokolips. Bart quit Young Justice temporarily as the death of his duplicate led him to come to terms with his own mortality.
Following Max Mercury's disappearance, Bart was taken in by Jay Garrick, and his wife Joan. After the breakup of Young Justice, Bart joined some of his former teammates in a reformed Teen Titans group.
Shortly after joining, Bart was shot in the knee by Deathstroke and received a prosthetic one. While recovering, Bart read every single book in the San Francisco Public Library and reinvented himself as the new Kid Flash.

Kid Flash is a bounty for villains, usually appearing on the northern shore of Little Bohemia almost directly north of Club L'Excellence (between the club and bridge) or south next to Big Belly Burger (which is located north of Club L'Excellence in Little Bohemia).

Bart originally created the "Impulse" codename for himself, though a retcon has Batman codenaming him such as a warning.

Born in the 30th century to Meloni Thawne and Don Allen, Bart is related to a number of superheroes and supervillains. His father, Don, is one of the Tornado Twins and his paternal grandfather is Barry Allen, the second Flash. His paternal grandmother, Iris West Allen, is also the adoptive aunt of the first Kid Flash, Wally West (Bart's first cousin once removed). Additionally, Bart is the first cousin of XS, a Legionnaire and daughter of Dawn Allen. On his mother's side, he is a descendant of supervillains Professor Zoom and Cobalt Blue as well as the half brother of Owen Mercer, the second Captain Boomerang. In addition to these relatives, he had a supervillain clone known as Inertia.